For a while I've been working quietly on a new project called "Rate This Spot". The basic idea is simple: Providing an instant way to rate all kinds of stuff based on its location. I think this is a powerful concept, in that it does not try to put ratings into little cubbyholes based on what it is you're rating. Instead, it relies on the human user to provide context and interpret the data to filter what is relevant to them at the time. The nice thing is: humans tend to be very good at doing exactly that.